public class SoftReg
    {
        // 取得设备硬盘的卷标号
        public string GetDiskVolumeSerialNumber()
        {
            ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
            ManagementObject disk = new ManagementObject("win32_logicaldisk.deviceid=\"d:\"");
            disk.Get();
            return disk.GetPropertyValue("VolumeSerialNumber").ToString();
        }
        //获得CPU的序列号
        public string getCpu()
        {
            string strCpu = null;
            ManagementClass myCpu = new ManagementClass("win32_Processor");
            ManagementObjectCollection myCpuConnection = myCpu.GetInstances();
            foreach (ManagementObject myObject in myCpuConnection)
            {
                strCpu = myObject.Properties["Processorid"].Value.ToString();
                break;
            }
            return strCpu;
        }
        //生成机器码
        public string getMNum()
        {
            string strNum = getCpu() + GetDiskVolumeSerialNumber();//获得24位Cpu和硬盘序列号
            string strMNum = strNum.Substring(0,24);//从生成的字符串中取出前24个字符做为机器码
            return strMNum;
        }
        public int[] intCode = new int[127];//存储密钥
        public int[] intNumber = new int[25];//存机器码的Ascii值
        public char[] Charcode = new char[25];//存储机器码字
        public void setIntCode()//给数组赋值小于10的数
        {
            for (int i = 1; i < intCode.Length; i++)
            {
                intCode[i] = i % 9;
            }
        }
        //生成注册码
        public string getRNum()
        {
            setIntCode();//初始化127位数组
            for (int i = 1; i < Charcode.Length; i++)//把机器码存入数组中
            {
                Charcode[i] = Convert.ToChar(this.getMNum().Substring(i - 1, 1));
            }
            for (int j = 1; j < intNumber.Length; j++)//把字符的ASCII值存入一个整数组中。
            {
                intNumber[j] = intCode[Convert.ToInt32(Charcode[j])] + Convert.ToInt32(Charcode[j]);
            }
            string strAsciiName = "";//用于存储注册码
            for (int j = 1; j < intNumber.Length; j++)
            {
                if (intNumber[j] >= 48 && intNumber[j] <= 57)//判断字符ASCII值是否0－9之间
                {
                    strAsciiName += Convert.ToChar(intNumber[j]).ToString();
                }
                else if (intNumber[j] >= 65 && intNumber[j] <= 90)//判断字符ASCII值是否A－Z之间
                {
                    strAsciiName += Convert.ToChar(intNumber[j]).ToString();
                }
                else if (intNumber[j] >= 97 && intNumber[j] <= 122)//判断字符ASCII值是否a－z之间
                {
                    strAsciiName += Convert.ToChar(intNumber[j]).ToString();
                }
                else//判断字符ASCII值不在以上范围内
                {
                    if (intNumber[j] > 122)//判断字符ASCII值是否大于z
                    {
                        strAsciiName += Convert.ToChar(intNumber[j] - 10).ToString();
                    }
                    else
                    {
                        strAsciiName += Convert.ToChar(intNumber[j] - 9).ToString();
                    }
                }
            }
            return strAsciiName;
        }
    }

        //判断是否注册
        private void btnReg_Click(object sender, EventArgs e)
        {
            if (txtRNum.Text.Equals(softreg.getRNum()))
            {
                RegistryKey retkey = Microsoft.Win32.Registry.CurrentUser.OpenSubKey("software", true).CreateSubKey("wxk").CreateSubKey("wxk.INI").CreateSubKey(txtRNum.Text);
                retkey.SetValue("UserName", "tsoft");
                MessageBox.Show("注册成功!", "信息", MessageBoxButtons.OK, MessageBoxIcon.Information);
                showMain();
            }
            else
            {
                MessageBox.Show("注册码输入错误！", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        private void btnClose_Click(object sender, EventArgs e)
        {
            showMain();
        }
        //隐藏注册窗体，显示主窗体
        public void showMain()
        {
            this.Hide();
            frmMain frmmain = new frmMain();
            frmmain.Show();
        }

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